Navigation Hack DIY Part One - Enable DVD, Phonebook & MP3 Folder While Moving
09-01-06, 04:53 PM
#256
Lexus Test Driver
i just had it done but the person who did it said the parking brake light would stay on. does anyone know what i can do so that the parking brake light doesn't stay on? it would be annoying to have that light on while i'm driving... thanks
09-01-06, 07:42 PM
#258
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If the parking brake light is on, the wrong side of the harness is grounded, or the ground was spliced into the harness by accident. (You cut the wire and connect the connector side, not the vehicle side, to ground).
-Brian
-Brian
09-01-06, 09:26 PM
#259
Lexus Test Driver
i got that figured out thanks... but now an even bigger problem.
the dvd/mp3 work while driving, but now my nav, dest, and menu buttons don't work. well they work, like you can hear the buttons being pushed and you can use the touch screen if you know where the buttons on the screen are located, but either the screen will stay black or there are white lines going vertically across the screen. we checked the wires and everything but we can't figure out what it could be. any ideas? i can't stand not being able to use the nav.
p.s. the wrong pink wire was cut, but sautered back and is working. also, the white and pink wires were sautered together. don't know if that makes a difference, but i'm just putting out there whatever could possibly be the problem. again, any help would be great. thanks ahead of time.
the dvd/mp3 work while driving, but now my nav, dest, and menu buttons don't work. well they work, like you can hear the buttons being pushed and you can use the touch screen if you know where the buttons on the screen are located, but either the screen will stay black or there are white lines going vertically across the screen. we checked the wires and everything but we can't figure out what it could be. any ideas? i can't stand not being able to use the nav.
p.s. the wrong pink wire was cut, but sautered back and is working. also, the white and pink wires were sautered together. don't know if that makes a difference, but i'm just putting out there whatever could possibly be the problem. again, any help would be great. thanks ahead of time.
09-01-06, 09:50 PM
#260
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I doubt anyone on here will be able to help you. Obviously something got damaged on one of the harnesses while you were back there.
Short of going back to the dealer and admitting that you broke something, I'd say that the soldered connection is either not good, or perhaps it's shorting against something (like ground).
-Brian
Short of going back to the dealer and admitting that you broke something, I'd say that the soldered connection is either not good, or perhaps it's shorting against something (like ground).
-Brian
09-01-06, 10:55 PM
#261
Lexus Test Driver
I doubt anyone on here will be able to help you. Obviously something got damaged on one of the harnesses while you were back there.
Short of going back to the dealer and admitting that you broke something, I'd say that the soldered connection is either not good, or perhaps it's shorting against something (like ground).
-Brian
Short of going back to the dealer and admitting that you broke something, I'd say that the soldered connection is either not good, or perhaps it's shorting against something (like ground).
-Brian
09-01-06, 11:04 PM
#262
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Means the guy that worked on it is responsible for it, so have him fix it. 
You can't exactly just get a new harness for that piece of the harness. I'm not sure what Lexus would do. I know replacing the entire harness would be some big bucks. Although any reasonable person would try and do some diagnostic work on the harness before hand. (Start the car with the NAV unit pulled out and try adjusting things on the harness. - Adjustments should be made with the vehicle turned off.)
-Brian
You can't exactly just get a new harness for that piece of the harness. I'm not sure what Lexus would do. I know replacing the entire harness would be some big bucks. Although any reasonable person would try and do some diagnostic work on the harness before hand. (Start the car with the NAV unit pulled out and try adjusting things on the harness. - Adjustments should be made with the vehicle turned off.)
-Brian
09-02-06, 12:54 AM
#263
Lexus Test Driver
we tried doing something like that, nav unit out and all. couldn't figure out what was wrong. does anyone know what harness/wires control the menu/nav/dest buttons? we tried looking at the wiring diagram but it is too damn confusing. thanks guys. we're gonna have another look at it in the afternoon.
09-02-06, 05:52 AM
#265
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just attach the wire to be grounded to one of the screws on the side of the nav/screen/stereo stack--there are plenty of screws there.
09-06-06, 05:18 PM
#266
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um ok, i've been reading this exact post even before i bought my IS. everything is in peices. the instructions in the beginning are great but then there are adaptation made because of a "jumpy nav". so i should follow the instrutions on the first page and then what needs to be done about the "jumpiness"? i want to try this hack asap! thanks
09-06-06, 05:22 PM
#267
Lexus Champion
i think you can follow the instructions at the beginning and you should be fine without getting the jumpiness.
if you do get the jumpiness, you can go back and read the rest of the thread on how to correct it.
if you do get the jumpiness, you can go back and read the rest of the thread on how to correct it.
